Array substrate with sub-pixels including power-supplying wire portions having openings therebetween and manufacturing method thereof, and display panel

ABSTRACT

An array substrate, a manufacturing method thereof and a display panel are provided. The array substrate includes sub-pixel units, and each sub-pixel unit includes a light emitting region and a non-light emitting region; each sub-pixel unit includes a light emitting element, the light emitting element includes a light emitting layer and a first electrode, and at least a part of the first electrode is in the light emitting region. A plurality of first wires are configured to supply a power signal to the light emitting element and include a first sub-wire; the first sub-wire includes a plurality of portions, adjacent two of the plurality of portions are spaced apart from each other by an opening in the light emitting region; at least a part of an orthographic projection of the opening on the array substrate does not overlap with an orthographic projection of the first electrode on the array substrate.

The application claims priority to the Chinese patent application No.201910567288.3, filed on Jun. 27, 2019, the entire disclosure of whichis incorporated herein by reference as part of the present application.

TECHNICAL FIELD

At least one embodiment of the present disclosure relates to an arraysubstrate, a manufacturing method of the array substrate, and a displaypanel.

BACKGROUND

At present, solutions of key virtualization, under-screen fingerprintrecognition, under-screen sounder and the like are applied in OLEDdisplay products. In these solutions, a function region outside adisplay region is reduced, and a part of the function region is providedto the back side of the display region, which requires the cooperationof under-screen chips. Therefore, the transmittance of the displayregion is affected by the under-screen chips. In this case, it is ofgreat significance to improve the transmittance of the display region.

SUMMARY

At least one embodiment of the present disclosure provides an arraysubstrate, and the array substrate comprises: a plurality of pixel unitsin an array, a light emitting element and a plurality of first wires.Each of the plurality of pixel units comprises a plurality of sub-pixelunits, and each of the plurality of sub-pixel units comprises a lightemitting region and a non-light emitting region; each of the pluralityof sub-pixel units comprises the light emitting element, the lightemitting element comprises a light emitting layer and a first electrodeelectrically connected to the light emitting layer, and at least a partof the first electrode is in the light emitting region; and theplurality of first wires are configured to supply a power signal to thelight emitting element and comprise a first sub-wire; the first sub-wireextends in a first direction and comprises a plurality of portions, theplurality of portions are arranged in the first direction and adjacenttwo portions of the plurality of portions are spaced apart from eachother by an opening, and the opening is in the light emitting region;the first electrode of the light emitting element is stacked with theplurality of first wires in a direction perpendicular to the arraysubstrate, and at least a part of an orthographic projection of the onthe array substrate does not overlap with an orthographic projection ofthe first electrode on the array substrate.

For example, the array substrate provided by at least one embodiment ofthe present disclosure further comprises a plurality of auxiliary wiresextending along a second direction intersecting the first direction; theplurality of first wires further comprise a second sub-wire continuouslyextending along the first direction; the plurality of portions of thefirst sub-wire are respectively electrically connected to the secondsub-wire through the plurality of auxiliary wires.

For example, in the array substrate provided by at least one embodimentof the present disclosure, the plurality of first wires comprise aplurality of the second sub-wires, and at least one of the plurality ofportions of the first sub-wire is electrically connected to one secondsub-wire, which is closest to the at least one of the plurality ofportions, of the plurality of second sub-wires through at least one ofthe plurality of auxiliary wires.

For example, in the array substrate provided by at least one embodimentof the present disclosure, at least one of the plurality of portions ofthe first sub-wire is electrically connected to the second sub-wirethrough at least two auxiliary wires of the plurality of auxiliarywires.

For example, in the array substrate provided by at least one embodimentof the present disclosure, the plurality of auxiliary wires have firstintersections points respectively with the plurality of portions of thefirst sub-wire, and the plurality of auxiliary wires are respectivelyelectrically connected to the plurality of portions of the firstsub-wire at the first intersections points; the plurality of auxiliarywires respectively have second intersection points with the secondsub-wire, and the plurality of auxiliary wires are respectivelyelectrically connected to the second sub-wire at the second intersectionpoints.

For example, the array substrate provided by at least one embodiment ofthe present disclosure further comprises an insulation layer, and theinsulation layer is between the plurality of first wires and theplurality of auxiliary wires and comprises a plurality of first viaholes, wherein a part of the plurality of first via holes are at thefirst intersection points, and the plurality of auxiliary wires arerespectively electrically connected to the plurality of portions of thefirst sub-wire through the part of the plurality of first via holes;another part of the plurality of first via holes are at the secondintersection points, and the plurality of auxiliary wires arerespectively electrically connected to the second sub-wire through theanother part of the first via holes.

For example, in the array substrate provided by at least one embodimentof the present disclosure, areas of the first electrodes of theplurality of sub-pixel units in each of the plurality of pixel units aredifferent, the plurality of sub-pixel units in each of the plurality ofpixel units comprise a first sub-pixel unit, and an area of the firstelectrode of the first sub-pixel unit is smallest among the firstelectrodes of the plurality of sub-pixel units in each of the pluralityof pixel units; the opening is not in the light emitting region of thefirst sub-pixel unit, and the opening is in the light emitting regionsof other sub-pixel units except the first sub-pixel unit.

For example, in the array substrate provided by at least one embodimentof the present disclosure, each of the plurality of pixel unitscomprises a red sub-pixel unit emitting red light, a green sub-pixelunit emitting green light, and a blue sub-pixel unit emitting bluelight; the opening is in the light emitting region of the blue sub-pixelunit and in the light emitting region of the red sub-pixel unit, and theis not in the light emitting region of the green sub-pixel unit.

For example, in the array substrate provided by at least one embodimentof the present disclosure, the first electrode of the light emittingelement is an anode, and the plurality of first wires and the firstelectrode of the light emitting element all are opaque.

For example, in the array substrate provided by at least one embodimentof the present disclosure, a material of the plurality of first wiresand a material of the first electrode of the light emitting element bothare a metal material.

For example, the array substrate provided by at least one embodiment ofthe present disclosure further comprises a data line, and the data lineis configured to provide a data signal for controlling a light emittingstate of the light emitting layer to the light emitting element if thepower signal is applied to the light emitting element, wherein the dataline is in a same layer as the first wires and comprises a same materialas the first wires.

For example, the array substrate provided by at least one embodiment ofthe present disclosure further comprises a pixel circuit, and the pixelcircuit comprises: a transistor and a storage capacitor; the transistorcomprises an active layer, a gate electrode, a source electrode and adrain electrode; the storage capacitor comprises a first electrode plateand a second electrode plate which are opposite to each other. The gateelectrode of the transistor is in a same layer as the first electrodeplate of the storage capacitor and comprises a same material as thefirst electrode plate of the storage capacitor, and the plurality ofauxiliary wires are in a same layer as the second electrode plate of thestorage capacitor and comprise a same material as the second electrodeplate of the storage capacitor.

At least one embodiment of the present disclosure further provides adisplay panel, and the display panel comprises any one of the arraysubstrates provided by the embodiments of the present disclosure.

For example, the display panel provided by at least one embodiment ofthe present disclosure further comprises a fingerprint recognitiondevice and a fingerprint recognition region. The fingerprint recognitiondevice is provided on the array substrate and in the fingerprintrecognition region; and at least a part of the orthographic projectionof the opening on the array substrate is in the fingerprint recognitionregion.

For example, the display panel provided by at least one embodiment ofthe present disclosure further comprises a non-fingerprint recognitionregion except the fingerprint recognition region; no part of theorthographic projection of the opening on the array substrate is in thenon-fingerprint recognition region.

At least one embodiment of the present disclosure further provides adisplay apparatus, and the display apparatus comprises any one of thedisplay panels provided by the embodiments of the disclosure.

At least one embodiment of the present disclosure further provides amanufacturing method of an array substrate, and the array substratecomprises a plurality of pixel units in an array, each of the pluralityof pixel units comprises a plurality of sub-pixel units, and each of theplurality of sub-pixel units comprises a light emitting region and anon-light emitting region; the manufacturing method comprises: forming alight emitting element in each of the plurality of sub-pixel units, inwhich the light emitting element comprises a light emitting layer and afirst electrode electrically connected to the light emitting layer, andat least a part of the first electrode is in the light emitting region;and forming a plurality of first wires, in which the plurality of firstwires are configured to supply a power signal to the light emittingelement, and the plurality of first wires comprise a first sub-wire; thefirst sub-wire extends along a first direction and comprises a pluralityof portions, the plurality of portions are arranged in the firstdirection and adjacent two portions of the plurality of portions arespaced apart from each other by an opening, and the opening is in thelight emitting region; and the first electrode of the light emittingelement is stacked with the plurality of first wires in a directionperpendicular to the array substrate, and at least a part of anorthographic projection of the opening on the array substrate does notoverlap with an orthographic projection of the first electrode on thearray substrate.

For example, the manufacturing method provided by at least oneembodiment of the present disclosure further comprises: forming aplurality of auxiliary wires, in which the plurality of auxiliary wiresextend along a second direction intersecting the first direction; theforming the plurality of first wires further comprise: forming a secondsub-wire, in which the second sub-wire continuously extends along thefirst direction, and the plurality of portions of the first sub-wire arerespectively electrically connected to the second sub-wire through theplurality of auxiliary wires.

For example, the manufacturing method provided by at least oneembodiment of the present disclosure further comprises: forming atransistor and a storage capacitor; the forming the transistor and thestorage capacitor comprises: forming a gate metal layer; and performingone patterning process on the gate metal layer to form a gate electrodeof the transistor and a first electrode plate of the storage capacitor.

For example, the manufacturing method provided by at least oneembodiment of the present disclosure further comprises: forming a firstmetal layer; and performing one patterning process on the first metallayer to form the plurality of auxiliary wires and a second electrodeplate of the storage capacitor, in which the second electrode plate ofthe storage capacitor and at least one auxiliary wire of the auxiliarywires are integral with each other.

For example, in the manufacturing method provided by at least oneembodiment of the present disclosure, the array substrate comprises adata line, the data line is configured to provide a data signal forcontrolling a light emitting state of the light emitting layer to thelight emitting element if the power signal is applied to the lightemitting element, and the manufacturing method comprises: forming asecond metal layer; and performing one patterning process on the secondmetal layer to form the data line and the plurality of first wires.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to clearly illustrate the technical solutions of theembodiments of the disclosure, the drawings of the embodiments will bebriefly described in the following; it is obvious that the describeddrawings are only related to some embodiments of the disclosure and thusare not limitative of the disclosure.

FIG. 1A is a schematic plan view of an array substrate provided byembodiments of the present disclosure;

FIG. 1B is a schematic plan view of one sub-pixel unit in FIG. 1A;

FIG. 1C-FIG. 1F are schematic diagrams of each layer in FIG. 1B;

FIG. 2 is a schematic plan view of first wires and auxiliary wires ofthe array substrate illustrated in FIG. 1A;

FIG. 3 is another schematic diagram of the first wires and the auxiliarywires of the array substrate illustrated in FIG. 1A;

FIG. 4 is a sectional view taken along a wire A-A′ in FIG. 1A;

FIG. 5 is an equivalent circuit diagram of a pixel circuit of thesub-pixel unit in FIG. 1B;

FIG. 6A is a signal timing chart of an operation process of the pixelcircuit illustrated in FIG. 5 ;

FIG. 6B is a schematic diagram of the pixel circuit illustrated in FIG.5 at an initialization stage 1;

FIG. 6C is a schematic diagram of the pixel circuit illustrated in FIG.5 in a data writing and compensation stage 2;

FIG. 6D is a schematic diagram of the pixel circuit illustrated in FIG.5 in a data writing and holding stage 3;

FIG. 6E is a schematic diagram of the pixel circuit illustrated in FIG.5 in a pre-light emitting stage 4;

FIG. 6F is a schematic diagram of the pixel circuit illustrated in FIG.5 in a light emitting stage 5;

FIG. 6G is another signal timing chart of the operation process of thepixel circuit provided by the embodiments of the present disclosure;

FIG. 7 is a schematic diagram of a display panel provided by theembodiments of the present disclosure;

FIG. 8A-FIG. 8E are schematic diagrams of a manufacturing method of anarray substrate provided by the embodiments of the present disclosure.

DETAILED DESCRIPTION

In order to make objects, technical details and advantages of theembodiments of the disclosure apparent, the technical solutions of theembodiments will be described in a clearly and fully understandable wayin connection with the drawings related to the embodiments of thedisclosure. Apparently, the described embodiments are just a part butnot all of the embodiments of the disclosure. Based on the describedembodiments herein, those skilled in the art can obtain other embodiment(s), without any inventive work, which should be within the scope of thedisclosure.

Unless otherwise defined, all the technical and scientific terms usedherein have the same meanings as commonly understood by one of ordinaryskill in the art to which the present disclosure belongs. The terms“first,” “second,” etc., which are used in the description and theclaims of the present application for disclosure, are not intended toindicate any sequence, amount or importance, but distinguish variouscomponents. Also, the terms “comprise,” “comprising,” “include,”“including,” etc., are intended to specify that the elements or theobjects stated before these terms encompass the elements or the objectsand equivalents thereof listed after these terms, but do not precludethe other elements or objects. The phrases “connect”, “connected”, etc.,are not intended to define a physical connection or mechanicalconnection, but may include an electrical connection, directly orindirectly. “In,” “out,” “on,” “under” and the like are only used toindicate relative position relationship, and when the position of theobject which is described is changed, the relative position relationshipmay be changed accordingly.

The figures in embodiments of the present disclosure are not drawnaccording to actual proportions or scales. The total number of pixelunits of the array substrate is not limited to the case illustrated inthe figures, the specific size of each structure may be determinedaccording to actual acquirements. The figures of the embodiments of thepresent disclosure are only schematic views.

At least one embodiment of the present disclosure provides an arraysubstrate, and the array substrate comprises: a plurality of pixel unitsin an array, a light emitting element and a plurality of first wires.Each of the plurality of pixel units comprises a plurality of sub-pixelunits, and each of the plurality of sub-pixel units comprises a lightemitting region and a non-light emitting region; each of the pluralityof sub-pixel units comprises the light emitting element, the lightemitting element comprises a light emitting layer and a first electrodeelectrically connected to the light emitting layer, and at least a partof the first electrode is in the light emitting region; and theplurality of first wires are configured to supply a power signal to thelight emitting element and comprise a first sub-wire; the first sub-wireextends in a first direction and comprises a plurality of portions, theplurality of portions are arranged in the first direction and adjacenttwo portions of the plurality of portions are spaced apart from eachother by an opening, and the opening is in the light emitting region;the first electrode of the light emitting element is stacked with theplurality of first wires in a direction perpendicular to the arraysubstrate, and at least a part of an orthographic projection of the atleast one opening on the array substrate does not overlap with anorthographic projection of the first electrode on the array substrate.

Illustratively, FIG. 1A is a schematic plan view of the array substrateprovided by the embodiments of the present disclosure, FIG. 1B is aschematic plan view of one sub-pixel unit in FIG. 1A. As illustrated inFIG. 1A and FIG. 1B, an array substrate 100 includes a plurality ofpixel units 10 arranged in an array, a light emitting element (notillustrated) and a plurality of first wires 1. Each of the plurality ofpixel units 10 includes a plurality of sub-pixel units 101, and each ofthe plurality of sub-pixel units 101 includes a light emitting regionand a non-light emitting region. For example, the sub-pixel unit is thesmallest unit that emit light for a purpose of displaying an image, andeach sub-pixel unit includes the light emitting element. For example,the light emitting element is in the light emitting region, the lightemitting region emits light, and the non-light emitting region surroundsthe light emitting region. One part (some first wires 1) of theplurality of first wires 1 are in the light emitting region and theother part (other first wires 1) of the plurality of first wires 1 arein the non-light emitting region. The light emitting element includes alight emitting layer and a first electrode 21 electrically connected tothe light emitting layer, at least a part of the first electrode 21 isin the light emitting region. The plurality of first wires 1 areconfigured to supply a power signal to the light emitting element, suchas a high voltage power signal (VDD signal), a low voltage power signal(VSS signal), or a current power signal. And, as illustrated in FIG. 1A,the plurality of first wires 1 include a first sub-wire 11 that extendsin a first direction, each first sub-wire 11 includes a plurality ofportions that are arranged in the first direction, two adjacent portions1111 and 1112 of the plurality of portions of each first sub-wire 11 arespaced apart from each other by an opening 3, i.e., the first sub-wire11 is broken at the opening 3, and the opening 3 is in the lightemitting region. The first electrode 21 of the light emitting element isstacked with the plurality of first wires 1 in a direction perpendicularto the array substrate 100, and the opening 3 does not overlap with thefirst electrode 21 in the direction perpendicular to the array substrate100. That is, an orthographic projection of the opening 3 on the arraysubstrate 100 does not overlap with an orthographic projection of thefirst electrode 21 on the array substrate 100, or is spaced apart fromthe orthographic projection of the first electrode 21 on the arraysubstrate 100. Thus, the opening 3 does not coincide with the firstelectrode 21 to increase the light transmittance of the pixel structureincluding the opening. For example, the first electrode 21 of the lightemitting element is an anode. For example, the first wires 1 and thefirst electrode 21 of the light emitting element all are opaque. In thiscase, a light transmission area of the pixel structure is increased, sothat the aperture ratio of the pixel structure is improved.

For example, in FIG. 1B, the entire opening 3 does not overlap with thefirst electrode 21 in the direction perpendicular to the array substrate100. For example, in other sub-pixel units, a part of the opening 3 doesnot overlap with the first electrode 21 in the direction perpendicularto the array substrate 100. For example, the array substrate 100 furtherincludes a base substrate, the plurality of pixel units 10, the lightemitting element and the plurality of first wires 1 are all disposed onthe base substrate, and at least a part of the opening 3 does notoverlap with the first electrode 21 in the direction perpendicular tothe base substrate, that is, an orthographic projection of the opening 3on the base substrate at least partially does not overlap with anorthographic projection of the first electrode 21 on the base substrate.For example, in FIG. 1B, the orthographic projection of the entireopening 3 on the base substrate does not overlap with the orthographicprojection of the first electrode 21 on the base substrate. In othersub-pixel units, for example, a part of the orthographic projection ofthe opening 3 on the base substrate does not overlap with theorthographic projection of the first electrode 21 on the base substrate.

For example, as illustrated in FIG. 1A, the array substrate includes aplurality of first electrodes 21 which are in one-to-one correspondencewith the plurality of sub-pixel units. In the array substrate 100, thetotal number of the openings 3 in one sub-pixel unit is one or more, andfor example, a part (some sub-pixel units) of the plurality of sub-pixelunits are not provided with the opening 3; that is, the total number ofthe opening 3 corresponding to each of some sub-pixel units is one ormore, while each of some other sub-pixel units is not provided with theopening 3. Therefore, one first electrode 21 correspond to one or moreof the openings 3, while another first electrode 21 does not correspondto the opening 3.

It should be noted that FIG. 1A is only a partial schematic diagram ofthe array substrate provided by the embodiments of the presentdisclosure. For example, positions of the openings 3 are different fordifferent first sub-wires 11; for example, referring to FIG. 1A and FIG.3 , one first sub-wire 11 has the opening 31, and another first sub-wire11 has the opening 32, the position of the opening 31 in the one firstsub-wire 11 does not correspond to the position of the opening 32 in theanother sub-wire 11.

It should be noted that in FIG. 1B, only one opening is illustrated forone first sub-wire 11. However, the embodiments of the presentdisclosure are not limited to this case, and one first sub-wire 11 forexample is divided into a plurality of portions spaced apart from eachother by a plurality of openings; for example, referring to FIG. 3 , thefirst sub-wire 11 is divided into three portions by the two openings 32and 33.

For example, the array substrate 100 further includes a plurality ofauxiliary wires 4 extending in a second direction intersecting the firstdirection. FIG. 2 is a schematic plan view of the first wires and theauxiliary wires of the array substrate illustrated in FIG. 1A. Asillustrated in FIG. 1A and FIG. 2 , the plurality of first wires 1further include a second sub-wire 12 that extends continuously in thefirst direction, i.e., the second sub-wire 12 does not include aplurality of portions spaced apart from each other by the openings andthe second sub-wire 12 is not broken by the openings. The plurality ofportions of the first sub-wire 11 are respectively electricallyconnected to the second sub-wire 12 through the plurality of auxiliarywires 4. The connection relationship of the auxiliary wires 4 and thefirst wires 1 as described above can transmit the power signal on thefirst wires 1 to each of the plurality of sub-pixel units, therebyproviding the power signal to each of the plurality of sub-pixel units.For example, the sub-pixel units include a plurality of rows and aplurality of columns, the plurality of first wires 1 are in one-to-onecorrespondence with the plurality of columns of the sub-pixel units, andthe plurality of auxiliary wires 4 are in one-to-one correspondence withthe plurality of rows of the sub-pixel units.

For example, in at least one embodiment of the present disclosure, theplurality of first wires include a plurality of the second sub-wires,and at least one of the plurality of portions of the first sub-wire iselectrically connected to one second sub-wire, which is closest to theat least one of the plurality of portions, among the plurality of secondsub-wires through at least one of the plurality of auxiliary wires. FIG.3 is a schematic diagram of the first wires and the auxiliary wiresprovided by the embodiments of the present disclosure. As illustrated inFIG. 3 , the first wires 1 include the first sub-wires 111 and 112, thesecond sub-wires 121, 122, 123, 124 and 125; the auxiliary wires 4include the auxiliary wires 41, 42, 43, 44 and 45. The first sub-wire111 includes a plurality of portions 1111, 1112, and 1113 that arespaced apart from each other by the openings 32 and 33, at least a partof the opening 32 and at least a part of the opening 33 respectively donot overlap with the first electrodes (not illustrated in FIG. 3 )corresponding thereto in the direction perpendicular to the arraysubstrate, i.e., at least a part of the orthographic projection of theopening 32 on the array substrate and at least a part of theorthographic projection of the opening 33 on the array substraterespectively do not overlap with the orthographic projections of thefirst electrodes (not illustrated in FIG. 3 ) corresponding thereto onthe array substrate. The second sub-wire 121 is the second sub-wireclosest to the first sub-wire 111 among the plurality of secondsub-wires, and the portions 1111, 1112, and 1113 of the first sub-wire111 are electrically connected to the second sub-wire 121 respectivelythrough the auxiliary wires 41, 42, and 43. In this way, a length of theauxiliary wire 4 in the second direction is reduced, so that theresistance of the auxiliary wire 4 is reduced.

For example, in the structure illustrated in FIG. 3 , because a leftside of the first sub-wire 112 is provided with the first sub-wire 111,the auxiliary wires 41 and 43 connecting the first sub-wire 111 and thesecond sub-wire 121 are slightly extended to connect the first sub-wire112 to the second sub-wire 121. Therefore, the plurality of portions1121 and 1122 of the first sub-wire 112 that are spaced apart from eachother by the opening 31 are respectively electrically connected to thesecond sub-wire 121 through the auxiliary wires 41 and 43. Of course, inother embodiments, in the case where the first sub-wire 112 is notadjacent to other first sub-wires, the plurality of portions 1121 and1122 of the first sub-wire 112 are electrically connected to the secondsub-wire 124, closest to the portions 1121 and 1122, among the pluralityof second sub-wires through the auxiliary wires.

It should be noted that in the array substrate provided by theembodiments of the present disclosure, the total number of the openingscorresponding to each first sub-wire is not limited and may be designedaccording to the arrangement of the first electrode and the requiredopening ratio.

For example, at least one of the portions of each first sub-wire iselectrically connected to the second sub-wire through at least twoauxiliary wires of the plurality of auxiliary wires. As illustrated inFIG. 3 , the first portion 1111 of the first sub-wire 111 iselectrically connected to the second sub-wire 121 through the threeauxiliary wires 41, 44, and 45. Therefore, a plurality of parallelcircuits are formed by the first sub-wire 111 and the plurality ofauxiliary wires 41, 44 and 45, thereby reducing the resistance of signaltransmission on the first portion 1111 of the first sub-wire 111 andimproving the electrical efficiency.

For example, as illustrated in FIG. 3 , the auxiliary wires 4 have firstintersection points respectively with the plurality of first sub-wires11, and the auxiliary wires 4 are electrically connected to the firstsub-wires 11 at the first intersection points. The auxiliary wires 4respectively have second intersection points with the second sub-wire12, and the auxiliary wires 4 are electrically connected to the secondsub-wire 12 at the second intersection points.

For example, each sub-pixel unit further includes a pixel circuitincluding a transistor, a storage capacitor and a signal line. Forexample, the transistor includes an active layer, a gate electrode, asource electrode, and a drain electrode. The storage capacitor includesa first electrode plate and a second electrode plate which are oppositeto each other. The gate electrode of the transistor is in the same layeras the first electrode plate of the storage capacitor and comprises asame material as the first electrode plate of the storage capacitor, andthe plurality of auxiliary wires are in the same layer as the secondelectrode plate of the storage capacitor and comprise a same material asthe second electrode plate of the storage capacitor. For example, thesecond electrode plate of the storage capacitor and at least oneauxiliary wire of the plurality of auxiliary wires are integral witheach other.

FIG. 1C-FIG. 1F are schematic diagrams of each layer in FIG. 1B, andFIG. 4 is a sectional view taken along a wire A-A′ in FIG. 1A. Forexample, an insulation layer is provided between adjacent layersillustrated in FIG. 1C-FIG. 1F. Referring to FIG. 1B-FIG. 1F, the arraysubstrate includes an active layer 9, a gate line and a gate electrode 7(the whole of the gate line and the gate electrode hereinafter isreferred to as the gate electrode 7) that are integral with each other,a first electrode plate 81 and a second electrode plate 82 of thestorage capacitor, a data line 6, and a data connection line 30.

FIG. 1C shows the active layer 9 of the sub-pixel unit in FIG. 1B. Forexample, a material of the active layer 9 is a semiconductor material,such as polysilicon, IGZO, and the like, and is specifically selectedaccording to the required performance of the transistor including theactive layer 9. No limitation is imposed to this in the embodiments ofthe present disclosure. For example, the pixel circuit includes a firstthin-film transistor T1, a second thin-film transistor T2, a thirdthin-film transistor T3, a fourth thin-film transistor T4, a fifththin-film transistor T5, a sixth thin-film transistor T6, and a sevenththin-film transistor T7 (as described below), and the active layers 9 ofthe seven transistors as a whole is of the shape illustrated in FIG. 1C.

FIG. 1D shows the gate electrode 7 of the sub-pixel unit in FIG. 1B. InFIG. 1B, the gate electrode 7 is stacked with the active layer 9 to formthe first thin film transistor T1, the second thin film transistor T2,the third thin film transistor T3, the fourth thin film transistor T4,the fifth thin film transistor T5, the sixth thin film transistor T6,and the seventh thin film transistor T7. It should be noted that in theembodiments of the present disclosure, the pixel structure and the pixelcircuit are described taking the case illustrated in FIG. 1B as anexample, but the pixel structure and the pixel circuit are not limitedto the case of the above-mentioned seven thin film transistors.

For example, a material of the gate electrode 7 is a metal material,such as copper, aluminum, copper alloy, aluminum alloy, silver, and thelike, but is not limited to the types listed above, and no limitation isimposed to this in the embodiments of the present disclosure.

As illustrated in FIG. 1D, the gate electrode 7 is in the same layer asthe first electrode plate 81 of the storage capacitor and comprises asame material as the first electrode plate 81. In this way, the gateelectrode 7 and the first electrode plate 81 of the storage capacitorare simultaneously formed by performing one same patterning process on asame material layer, thus simplifying the manufacturing process of thearray substrate.

As illustrated in FIG. 1E, the auxiliary wires 4 are in the same layeras the second electrode plate 82 of the storage capacitor and comprise asame material as the second electrode plate 82. For example, the secondelectrode plate 82 and at least one auxiliary wire of the plurality ofauxiliary wires 4 are integral with each other, that is, the at leastone auxiliary wire 4 is electrically connected to the second electrodeplate 82 of the storage capacitor. For example, a width of the secondelectrode plate 82 in the first direction is larger than a width of eachauxiliary wire 4 in the first direction. The manufacturing process ofthe array substrate are further simplified by simultaneously forming theplurality of auxiliary wires 4 and the second polar plate 82 of thestorage capacitor by performing one same patterning process on a samematerial layer.

Referring to FIG. 1A-FIG. 1F, FIG. 2 and FIG. 4 , for example, the arraysubstrate 100 further includes an insulation layer 5, and the insulationlayer 5 is between the plurality of first wires 1 and the secondelectrode plate 82 and includes a plurality of first via holes 50.Because the auxiliary wires 4 are in the same layer as the secondelectrode plate 82 of the storage capacitor and comprise the samematerial as the second electrode plate 82, the insulation layer 5 isbetween the plurality of first wires 1 and the plurality of auxiliarywires 4. A part 50-1 (some first via holes) of the plurality of firstvia holes 50 are at the first intersection points, and the plurality ofauxiliary wires 41 are respectively electrically connected to theplurality of portions 1111 and 1112 of the first sub-wire through thepart 50-1 of the plurality of first via holes 50; another part 50-2(some other first via holes) of the plurality of first via holes 50 areat the second intersection points, and the plurality of auxiliary wires4 are respectively electrically connected to the second sub-wire 12through the another part 50-2 of the first via holes 50.

For example, as illustrated in FIG. 1A, FIG. 1B and FIG. 1F, the arraysubstrate 100 further includes a data line 6. The data line 6 isconfigured to provide a data signal for controlling a light emittingstate of the light emitting layer to the light emitting element if thepower signal is applied to the light emitting element, and is disposedin the same layer as the first wires 1 and comprises the same materialas the first wires 1. In this way, the first wires 1 and the data line 6are simultaneously formed by performing one same patterning process on asame material layer, thus simplifying the manufacturing process of thearray substrate.

For example, combining FIG. 1A, FIG. 1B, FIG. 1F and FIG. 4 , the arraysubstrate 100 further includes a second via hole 51 penetrating throughthe insulation layer 5, the second electrode plate 82 of the storagecapacitor and a dielectric layer 83. The dielectric layer 83 is providedbetween the first electrode plate 81 and the second electrode plate 82.The data connection line 30 is electrically connected to the firstelectrode plate 81 of the storage capacitor through the second via hole51. One terminal, away from the first electrode plate 81, of the dataconnection line 30 is connected to the source electrode or the drainelectrode of one or more thin film transistors of the pixel circuit.Specific connection manners may be referred to the following equivalentcircuit diagram.

For example, in at least one embodiment, areas of the first electrodes21 of the plurality of sub-pixel units in each of the plurality of pixelunits are different (for example different from each other), theplurality of sub-pixel units in each of the plurality of pixel unitsinclude a first sub-pixel unit, and an area of the first electrode 21 ofthe first sub-pixel unit is the smallest among the first electrodes ofthe plurality of sub-pixel units in each of the plurality of pixelunits. The opening is not in the light emitting region of the firstsub-pixel unit, and the opening is in the light emitting regions ofother sub-pixel units except the first sub-pixel unit. Therefore, thearray substrate provided by the embodiment of the disclosure ensures theuniformity of luminous brightness of the plurality of sub-pixel unitswhile improving the light transmittance.

For example, in at least one embodiment, in the plurality of sub-pixelunits of each of the plurality of pixel units, overlapping areas betweenan orthographic projection of the first sub-wire on a plane where thefirst electrode corresponding to the first sub-wire is located and thefirst electrode corresponding to the first sub-wire are different, forexample, different from each other; the plurality of sub-pixel units ineach of the plurality of pixel units include the first sub-pixel unit;and among the plurality of sub-pixel units in each of the plurality ofpixel units, the overlapping area between the orthographic projection ofthe first sub-wire on the plane where the first electrode correspondingto the first sub-wire is located and the first electrode correspondingto the first sub-wire is the smallest. The opening is not in the lightemitting region of the first sub-pixel unit, and the opening is in thelight emitting regions of other sub-pixel units except the firstsub-pixel unit.

Illustratively, as illustrated in FIG. 1A, each of the plurality ofpixel units includes a red sub-pixel unit (R) emitting red light, agreen sub-pixel unit (G) emitting green light, and a blue sub-pixel unit(B) emitting blue light. The red sub-pixel unit, the green sub-pixelunit, and the blue sub-pixel unit are respectively provided with a firstelectrode 211, a first electrode 212, and a first electrode 213. Forexample, the opening 31 (in the block of the dotted line in the figure)is in the light emitting region of the red sub-pixel unit, and theopening 31 does not overlap with the first electrode 211 of the redsub-pixel unit in the direction perpendicular to the array substrate100, that is, the orthographic projection of the opening 31 on the arraysubstrate 100 does not overlap with the orthographic projection of thefirst electrode 211 on the array substrate 100. The opening 32 (in theblock of the dotted line in the figure) is in the light emitting regionof the blue sub-pixel unit; the opening is not in the light emittingregion of the green sub-pixel unit. Considering the differences inshapes and positions of the first electrodes 21 respectively in the R, Gand B sub-pixel units, the relative relationships between the firstelectrodes 21 respectively in the R, G and B and the first sub-wire 11under the respective first electrode 21 are different. In FIG. 1A, inthe R and B sub-pixel units, the overlapping area between theorthographic projection of the first sub-wire 11 on the plane where thefirst electrode 21 corresponding to the first sub-wire 11 is located andthe first electrode 21 corresponding to the first sub-wire 11 is smallerthan that in the G, and providing the openings 31 and 32 is beneficialto improving the light transmittance of the R and B. In FIG. 1A, in theG sub-pixel unit, the overlapping area between the orthographicprojection of the first sub-wire 11 on the plane where the firstelectrode 21 corresponding to the first sub-wire 11 is located and thefirst electrode 21 corresponding to the first sub-wire 11 is larger thanthose in the R and B sub-pixel units, therefore even if the opening isprovided in the G sub-pixel unit, the effect of improving the pixeltransmittance is not obvious. Therefore, no opening is provided in the Gsub-pixel unit to simplify the manufacturing process of the arraysubstrate. Of course, in other embodiments, each sub-pixel unit includesthe opening. For example, each of the red sub-pixel unit (R), the greensub-pixel unit (G), and the blue sub-pixel unit (B) in each pixel unitincludes the opening.

For example, the first electrode of the light emitting element is theanode, the first wires and the first electrode of the light emittingelement all are opaque. For example, a material of the first wires 1 anda material of the first electrode 21 of the light emitting element allare a metal material, such as copper alloy, aluminum alloy, copper,aluminum, silver, and the like. However, they are not limited to themetal materials, but may also be other opaque conductive materials.

The pixel circuit for example is applied to the sub-pixel units of thearray substrate. The pixel circuit includes a driving circuit, a datawriting circuit, a compensation circuit, a first light emission controlcircuit, a second light emission control circuit, a reset circuit, andthe light emitting element. Embodiments of the present disclosureinclude, but are not limited to, this solution. The pixel circuit forexample includes both N-type transistors and P-type transistors.

It should be noted that in the embodiments of the present disclosure,the pixel circuit is described by taking a mode of voltage driving as anexample. For example, a first voltage terminal VDD in the following isinput a DC high level signal which is referred to as a first voltage;for example, a second voltage terminal VSS is input a DC low levelsignal which is referred to as a second voltage and is lower than thefirst voltage. The following embodiments are the same in this aspectwhich is not repeated.

It should be noted that in the description of the embodiments of thepresent disclosure, a first node N1, a second node N2, a third node N3,and a fourth node N4 do not represent actual components, but ratherrepresent junction points of the connections of the related circuits inthe circuit diagram.

It should be noted that in the description of the embodiments of thepresent disclosure, the symbol Vdata represents the data signal terminalor the data signal level. Similarly, the symbol Vinit represents thereset voltage terminal or the reset voltage, the symbol VDD representsthe first voltage terminal or the first voltage, and the symbol VSSrepresents the second voltage terminal or the second voltage. Thefollowing embodiments are the same in this aspect which is not repeated.

FIG. 5 is an equivalent circuit diagram of the pixel circuit of thesub-pixel unit in FIG. 1B. Referring to FIG. 1B and FIG. 5 , the pixelcircuit includes the first transistor T1, the second transistor T2, thethird transistor T3, the fourth transistor T4, the fifth transistor T5,the sixth transistor T6, the seventh transistor T7, the storagecapacitor C, and the light emitting element L1. For example, the lightemitting element L1 may be various types of OLED, such as of topemission, bottom emission, double-sided emission, etc., and may emit redlight, green light, blue light, white light, etc. No limitation isimposed to this in the embodiments of the present disclosure.

For example, as illustrated in FIG. 5 , the driving circuit isimplemented as the first transistor T1. A gate electrode of the firsttransistor T1 serves as a control terminal of the driving circuit and isconnected to the first node N1. A first electrode of the firsttransistor T1 serves as a first terminal of the driving circuit and isconnected to the second node N2. A second electrode of the firsttransistor T1 serves as a second terminal of the driving circuit and isconnected to the third node N3. For example, the first transistor T1 isa P-type transistor. For example, the P-type transistor is turned on inresponse to a low-level signal, and the following embodiment are thesame in this aspect which is not described again. It should be notedthat in the embodiments of the present disclosure, the pixel circuitillustrated in FIG. 1A and FIG. 5 is taken as an example, but theembodiments of the present disclosure are not limited to this case. Forexample, in other embodiments, the pixel circuit may be different fromthis. For example, the driving circuit may also be a circuit composed ofother components.

For example, the data writing circuit is implemented as the secondtransistor T2. A gate electrode of the second transistor T2 is connectedto a first scan line (a first scan signal terminal Gate_N) to receive afirst scan signal, a first electrode of the second transistor T2 isconnected to the data line (a data signal terminal Vdata) to receive adata signal, and a second electrode of the second transistor T2 isconnected to the first terminal of the driving circuit (the second nodeN2). For example, the second transistor T2 is a P-type transistor, forexample, the active layer comprises a low temperature doped polysilicon.It should be noted that the data writing circuit is not limited to thiscase, but may also be a circuit composed of other components.

For example, the compensation circuit is implemented as the thirdtransistor T3 and the storage capacitor C. A gate electrode of the thirdtransistor T3 is configured to be connected to a second scan line (asecond scan signal terminal Gate_N−1) to receive a second scan signal, afirst electrode of the third transistor T3 is connected to the controlterminal (the first node N1) of the driving circuit, and a secondelectrode of the third transistor T3 is connected to the second terminal(the third node N3) of the driving circuit; the first electrode plate ofthe storage capacitor C is connected to the control terminal of thedriving circuit, and the second electrode plate of the storage capacitorC is connected to the first voltage terminal VDD. The third transistorT3 is an N-type transistor. For example, the N-type transistor is used,IGZO is used as the active layer of the thin film transistor to reducethe size of the driving transistor and prevent the leakage current. Forexample, the N-type transistor is turned on in response to a high-levelsignal, and the following embodiments are the same as this in thisrespect which is not described again. It should be noted that thecompensation circuit is not limited to this case, but may also be acircuit composed of other components.

For example, the first light emission control circuit is implemented asthe fourth transistor T4. A gate electrode of the fourth transistor T4is connected to a first light emission control line (a first lightemission control terminal EM1) to receive a first light emission controlsignal, a first electrode of the fourth transistor T4 is connected tothe first voltage terminal VDD to receive the first voltage, and asecond electrode of the fourth transistor T4 is connected to the firstterminal (the second node N2) of the driving transistor. The fourthtransistor T4 is a P-type transistor, for example, the active layer ismade of the low temperature doped polysilicon. It should be noted thatthe first light emission control circuit is not limited to this case,and may also be a circuit composed of other components.

A first terminal (an anode here) of the light emitting element L1 isconnected to the fourth node N4 and is configured to receive a drivingcurrent from the second terminal of the driving circuit through thesecond light emission control circuit, and a second terminal (forexample, a cathode) of the light emitting element L1 is connected to thesecond voltage terminal VSS to receive the second voltage. For example,the second voltage terminal is grounded, i.e., the second voltage fromthe second voltage terminal VSS is 0V. The light emitting layer isprovided between the anode and the cathode.

For example, the second light emission control circuit is implemented asa fifth transistor T5. A gate electrode of the fifth transistor T5 isconnected to a second light emission control line (A second lightemission control terminal EM2) to receive a second light emissioncontrol signal, A first electrode of the fifth transistor T5 isconnected to the second terminal (the third node N3) of the drivingcircuit, and a second electrode of the fifth transistor T5 is connectedto the first terminal (the fourth node N4) of the light emitting elementL1. For example, the fifth transistor T5 is a P-type transistor, forexample, the active layer is made of the low temperature dopedpolysilicon. It should be noted that the second light emission controlcircuit is not limited to this case, and may also be a circuit composedof other components.

For example, the reset circuit is implemented as the sixth transistor T6and the seventh transistor T7. A gate electrode of the sixth transistorT6 is connected to the second scan line (a first reset control terminalRst) to receive the second scan signal as a first reset signal, a firstelectrode of the sixth transistor T6 is connected to the reset voltageterminal Vinit to receive the reset voltage, and a second electrode ofthe sixth transistor T6 is connected to the first terminal of the lightemitting element. A gate electrode of the seventh transistor T7 is alsoconnected to the second scan line (the reset control terminal Rst) toreceive the second scan signal as a reset signal, a first electrode ofthe seventh transistor T7 is connected to the reset voltage terminalVinit to receive the reset voltage, and a second electrode of theseventh transistor T7 is connected to the gate electrode of the firsttransistor T1 (the first node N1). For example, the sixth transistor T6and the seventh transistor T7 are N-type transistors, for example, theactive layer is made of IGZO. It should be noted that the reset circuitis not limited to this case, but may also be a circuit composed of othercomponents.

In the embodiments of the present disclosure, the pixel circuit includeN-type transistors and P-type transistors, for example, the thirdtransistor T3, the sixth transistor T6 and the seventh transistor T7 areN-type transistors, and other transistors are P-type transistors. Theleakage current of the N-type transistor is small, therefore the flickerphenomenon can be overcome when the pixel circuit is used forlow-frequency driving; the third transistor T3 of the compensationcircuit in the pixel circuit adopts the N-type transistor with a smallleakage current and a smaller size, therefore the storage capacitor C ofthe compensation circuit may be a capacitor with a smaller size, therebyincreasing the resolution of the display panel; meanwhile, because theleakage current of the N-type transistor is small, it is not necessaryto consider the aging problem of the N-type transistor.

In the following, an operation principle of the pixel circuit 10illustrated in FIG. 5 is described with reference to a signal timingchart illustrated in FIG. 6A.

As illustrated in FIG. 6A, the display process of each frame imageincludes five stages, namely an initialization stage 1, a data writingand compensation stage 2, a data writing and holding stage 3, apre-light emitting stage 4 and a light emitting stage 5. The figureshows the timing waveform of each signal in each stage.

It should be noted that FIG. 6B is a schematic diagram when the pixelcircuit illustrated in FIG. 5 is in the initialization stage 1, FIG. 6Cis a schematic diagram when the pixel circuit illustrated in FIG. 5 isin the data writing and compensation stage 2, FIG. 6D is a schematicdiagram when the pixel circuit illustrated in FIG. 5 is in the datawriting and holding stage 3, FIG. 6E is a schematic diagram when thepixel circuit illustrated in FIG. 5 is in the pre-light emitting stage4, and FIG. 6F is a schematic diagram when the pixel circuit illustratedin FIG. 5 is in the light emitting stage 5. In addition, all thetransistors identified by dashed lines in FIG. 6B to FIG. 6F indicatethat they are in an off state in the corresponding stage, and the dashedlines with arrows in FIG. 6B to FIG. 6F indicate the current directionof the pixel circuit in the corresponding stage. The transistorsillustrated in FIG. 6B to FIG. 6F are all explained by taking theexample that the third transistor T3, the sixth transistor T6 and theseventh transistor T7 are N-type transistors, and the other transistorsare P-type transistors, i.e., each of the N-type transistor is turned onwhen the high level signal is applied to the gate electrode thereof andis turned off when the low level signal is applied to the gate electrodethereof, and each of the P-type transistor is turned on when the lowlevel signal is applied to the gate electrode thereof and is turned offwhen the high level signal is applied to the gate electrode thereof. Thefollowing examples are the same in this aspect which is not describedagain.

In the initialization stage 1, a reset signal, a second scan signal anda second light emission control signal are input to turn on the resetcircuit, the compensation circuit and the second light emission controlcircuit, and the reset voltage is applied to the control terminal of thedriving circuit, the first terminal of the driving circuit, the secondterminal of the driving circuit and the first terminal of the lightemitting element. For example, as illustrated in FIG. 6A, the secondscan signal is synchronized with the reset signal, i.e., the resetsignal may be the second scan signal, and the following embodiments arethe same as the above in this respect which is not described again.

As illustrated in FIG. 6A and FIG. 6B, in the initialization stage 1,because the third transistor T3, the sixth transistor T6 and the seventhtransistor T7 are N-type transistors, the sixth transistor T6 and theseventh transistor T7 are turned on by the high level of the resetsignal, the third transistor T3 is turned on by the high level of thesecond scan signal, and the fifth transistor T5 is turned on by the lowlevel of the second light emission control signal. Meanwhile, the secondtransistor T2 is turned off by the high level of the first scan signal,and the fourth transistor T4 is turned off by the high level of thefirst light emission control signal.

As illustrated in FIG. 6B, in the initialization stage 1, a reset pathis formed (as illustrated by the dashed line with arrow in FIG. 6B).Therefore, in this stage, the storage capacitor C and the gate electrodeof the first transistor T1 are discharged through the third transistorT3, the fifth transistor T5 and the sixth transistor T6, the firsttransistor T1 is discharged through the fifth transistor T5 and thesixth transistor T6, and the light emitting element L1 is dischargedthrough the sixth transistor T6, thereby the first node N1, the secondnode N2, the third node N3, and the light emitting element L1 (i.e., thefourth node N4) are reset. Meanwhile, the reset signal is directlysupplied to the first node N1 through the seventh transistor T7 toensure that the first node N1 is reset. Therefore, all the potentials ofthe first node N1, the third node N3, and the fourth node N4 after theinitialization stage 1 are the reset voltages Vinit (low level signals,for example, grounded signals or other low level signals). In thisstage, because the first transistor T1 and the fifth transistor T5 areturned on and the fourth transistor T4 is turned off, the potential ofthe source electrode of the first transistor T1 (i.e., the second nodeN2) is discharged to Vinit−Vth according to the characteristics of thefirst transistor T1. Therefore, in this stage, a voltage V_(GS) betweenthe gate electrode (i.e., the first node N1) and the source electrode(i.e., the second node N2) of the first transistor T1 satisfies acondition of |V_(GS)|<|Vth|, thereby allowing the first transistor T1 inan off-bias state where the voltage V_(GS) is in fixed bias. With thisconfiguration, whether the data signal of a previous frame is a blacksignal or a white signal, the first transistor T1 begins to enter thedata writing and compensation stage 2 from the off-bias state, therebyalleviating the short-term afterimage problem possibly caused by thehysteresis effect of the display device adopting the pixel circuit.

After the initialization stage 1, the potential of the first node N1 isthe reset voltage Vinit, and the potential of the second node N2 isVinit−Vth. In the initialization stage 1, the storage capacitor C isreset to discharge the voltage stored in the storage capacitor C, sothat data signals in subsequent stages can be stored in the storagecapacitor C more quickly and reliably. Meanwhile, the third node N3 andthe light emitting element L1 (i.e., the fourth node N4) are also reset,so that the light emitting element L1 is in the black state withoutemitting light before the light emitting stage 5, and display effectssuch as contrast of a display device adopting the pixel circuitdescribed above are improved.

In the data writing and compensation stage 2, the first scan signal, thesecond scan signal and the data signal are input to turn on the datawriting circuit, the driving circuit and the compensation circuit, thedata writing circuit writes the data signal into the driving circuit,the compensation circuit stores the data signal, and the compensationcircuit compensates the driving circuit.

As illustrated in FIG. 6A and FIG. 6C, in the data writing andcompensation stage 2, the second transistor T2 is turned on by the lowlevel of the first scan signal, and the third transistor T3 is turned onby the high level of the second scan signal. In this example, becausethe second scan signal is a reset signal, the sixth transistor T6 andthe seventh transistor T7 are turned on by the high level of the resetsignal. Meanwhile, the fourth transistor T4 is turned off by the highlevel of the first light emission control signal, and the fifthtransistor T5 is turned off by the high level of the second lightemission control signal.

As illustrated in FIG. 6C, in the data writing and compensation stage 2,a data writing and compensation path (illustrated by dashed line 1 witharrow in FIG. 6C) and a reset path (illustrated by dashed line 2 witharrow in FIG. 6C) are formed. The first node N1 is charged by the datasignal (i.e., the storage capacitor C is charged) after the data signalpasses through the second transistor T2, the first transistor T1 and thethird transistor T3, that is, the potential of the first node N1increases. It is easy to understand that the potential of the secondnode N2 is kept at Vdata; and at the same time, according to the owncharacteristics of the first transistor T1, when the potential of thefirst node N1 increases to Vdata+Vth, the first transistor T1 is turnedoff, and the charging process terminals. It should be noted that Vdatarepresents the voltage value of the data signal, and Vth represents thethreshold voltage of the first transistor. In the embodiments, the firsttransistor T1 is described by taking a P-type transistor as an example,so the threshold voltage Vth may be a negative value herein. Meanwhile,in this stage, the fourth node N4 continues being discharged through thesixth transistor T6, therefore the voltage of the fourth node N4 isstill the reset voltage Vinit. It should be noted that in this stage,the reset circuit may also be turned off in response to other resetsignals without affecting the subsequent light emitting stage of thepixel circuit, and no limitation is imposed to this in the embodimentsof the present disclosure.

After the data writing stage 2, both the potentials of the first node N1and the third node N3 are Vdata+Vth, that is, voltage information withthe data signal and the threshold voltage Vth is stored in the storagecapacitor C for providing a gray scale display data and compensating thethreshold voltage of the first transistor T1 in the subsequent lightemitting stage.

In the data writing and holding stage 3, the first scan signal is inputto turn on the data write circuit, and the second scan signal is inputto turn off the compensation circuit to keep the voltage of the controlterminal of the driving circuit.

As illustrated in FIG. 6A and FIG. 6D, in the data writing and holdingstage 3, the second transistor T2 is turned on by the low level of thefirst scan signal; meanwhile, the third transistor T3 is turned off bythe low level of the second scan signal. In this example, because thesecond scan signal is a reset signal, the sixth transistor T6 and theseventh transistor T7 are turned off by the low level of the resetsignal, the fourth transistor T4 is turned off by the high level of thefirst light emission control signal, and the fifth transistor T5 isturned off by the high level of the second light emission controlsignal.

As illustrated in FIG. 6D, in the data writing and holding stage 3, adata writing and holding path is formed (as illustrated by a dashed linewith an arrow in FIG. 6D). In this stage, the third transistor T3 isturned off, and the potential of the first node N1 is kept at Vdata+Vthbecause of the characteristic of the storage capacitor.

After the data writing and holding stage 3, the potential of the firstnode N1 is kept at Vdata+Vth. That is, the voltage information with thedata signal and the threshold voltage Vth is continuously stored in thestorage capacitor C for providing the gray scale display data andcompensating the threshold voltage of the first transistor T1 in thesubsequent light emitting stage.

In the pre-lighting stage 4, the first lighting control signal is inputto turn on the first lighting control circuit and the driving circuit,and the first lighting control circuit applies the first voltage to thefirst terminal 110 of the driving circuit.

As illustrated in FIG. 6A and FIG. 6E, the fourth transistor T4 isturned on by the low level of the first light emission control signal inthe pre-light emitting stage 4. Meanwhile, the second transistor T2 isturned off by the high level of the first scan signal, the thirdtransistor T3 is turned off by the low level of the second scan signal,the sixth transistor T6 and the seventh transistor T7 are turned off bythe low level of the reset signal, and the fifth transistor T5 is turnedoff by the high level of the second light emission control signal.

As illustrated in FIG. 6E, in the pre-light emitting stage 4, apre-light emitting path is formed (as illustrated by the dotted linewith arrows in FIG. 6E). The first voltage charges the second node N2through the fourth transistor T4, and the potential of the second nodeN2 changes from Vdata to the first voltage VDD. Because the fifthtransistor T5 is turned off in this stage, it is prepared for lightemission of the light emitting element L1 in the next stage.

In the light emitting stage 5, the first light emission control signaland the second light emission control signal are input to turn on thefirst light emission control circuit, the second light emission controlcircuit and the driving circuit, and the second light emission controlcircuit applies the driving current to the light emitting element L1 toenable it to emit light.

As illustrated in FIG. 6A and FIG. 6F, in the light emitting stage 5,the fourth transistor T4 is turned on by the low level of the firstlight emission control signal, and the fifth transistor T5 is turned onby the low level of the second light emission control signal. Meanwhile,the second transistor T2 is turned off by the high level of the firstscan signal, the third transistor T3 is turned off by the low level ofthe second scan signal, and the sixth transistor T6 and the seventhtransistor T7 are turned off by the low level of the reset signal. Andmeanwhile, the potential of the first node N1 is Vdata+Vth and thepotential of the second node N2 is VDD, therefore the first transistorT1 is also kept on in this stage.

As illustrated in FIG. 6F, in the light emitting stage 5, a drivinglight emitting path is formed (as illustrated by a dotted line with anarrow in FIG. 6F). The light emitting element L1 emits light under theaction of the driving current flowing through the first transistor T1.

Specifically, the value of the driving current I_(L1) flowing throughthe light emitting element L1 is obtained according to the followingformula:

I_(L 1) = K(V_(GS) − Vth)² = K[(Vdata + Vth − VDD) − Vth]² = K(Vdata − VDD)²,

in which K=W*C_(OX)*U/L.

In the above formula, V_(th) represents the threshold voltage of thefirst transistor T1, V_(GS) represents the voltage between the gateelectrode and the source electrode (here, the first electrode) of thefirst transistor T1, and K is a constant value related to thecharacteristic of the driving transistor. It can be seen from the abovecalculation formula of I_(L) that the driving current I_(L1) flowingthrough the light emitting element L1 is no longer related to thethreshold voltage Vth of the first transistor T1, thus compensation forthe pixel circuit is realized, the problem of threshold voltage driftcaused by the driving transistor (the first transistor T1 in theembodiments of the present disclosure) because of the manufacturingprocess and long-term operation is solved, the influence caused by theproblem of threshold voltage drift on the driving current I_(L1) iseliminated, and thus the display effect of the display device adoptingthe pixel circuit is improved.

It should be noted that the transistors used in the embodiments of thepresent disclosure may be thin film transistors or field effecttransistors or other switching devices with the same characteristics,and the embodiments of the present disclosure are all described withthin film transistors as examples. The source electrode and the drainelectrode of the transistor mentioned in the embodiments of the presentdisclosure are symmetrical in structure, therefore the source electrodeand the drain electrode are not specifically distinguished in structure.In the embodiments of the present disclosure, in order to distinguishthe two electrodes of the transistor except the gate electrode, oneelectrode is described as the first electrode and the other electrode isdescribed as the second electrode.

In addition, it should be noted that the transistors in the pixelcircuit illustrated in FIG. 5 are illustrated by taking the thirdtransistor T3, the sixth transistor T6 and the seventh transistor T7 asN-type transistors and other transistors as P-type transistors. In thiscase, the first electrode may be a drain electrode and the secondelectrode may be a source electrode. As illustrated in FIG. 6B, thecathode of the light emitting element L1 in the pixel circuit 10 isconnected to the second voltage terminal VSS to receive the secondvoltage. For example, in a display panel, the pixel circuits 10illustrated in FIG. 6B are arranged in an array, the cathodes of thelight emitting elements L1 are electrically connected to the samevoltage terminal, i.e., a common cathode connection mode is adopted.

For example, according to the embodiments of the present disclosure, thefirst light emission control terminal EM1 and the second light emissioncontrol terminal EM2 in FIG. 5 are connected to the same light emissioncontrol line, in this case, the signal timing applied to the first lightemission control terminal EM1 is the same as the signal timing appliedto the second light emission control terminal EM2. For example, in atleast one embodiment, all the transistors illustrated in FIG. 5 areP-type transistors. In this case, for example, the signal timing diagramof the pixel circuit is illustrated in FIG. 6G.

As illustrated in FIG. 6G, the operation process of the pixel circuitincludes three stages, namely an initialization stage P1, a data writingand compensation stage P2 and a light emitting stage P3, and the timingwaveform of each signal in each stage is illustrated in the figure.

In the initialization stage P1, a reset signal Rst is provided, theseventh transistor T7 and the sixth transistor T6 are turned on by thelow level of the reset signal, an initialization signal (low levelsignal, for example, which is grounded or other low level signal) isapplied to the gate electrode of the first transistor T1, and theinitialization signal is applied to the N4 node, which resets the lightemitting element L1, so that the light emitting element L1 is in theblack state without emitting light before the light emitting stage P3,and display effects such as contrast of a display device adopting thepixel circuit are improved. Meanwhile, the second transistor T2, thethird transistor T3, the fourth transistor T4, and the fifth transistorT5 are turned off respectively by the inputted high-level signals.

In the data writing and compensation stage P2, a first scan signal isprovided through the first scan signal terminal Gate_N, the data signalis provided through the data line, and the second transistor T2 and thethird transistor T3 are turned on. Meanwhile, the seventh transistor T7,the fourth transistor T4, the fifth transistor T5, and the sixthtransistor T6 are turned off respectively by the inputted high-levelsignals. The first node N1 is charged (i.e., the storage capacitor C ischarged) by the data signal after the data signal passes through thesecond transistor T2, the first transistor T1 and the third transistorT3, that is, the potential of the first node N1 gradually increases. Itis easy to understand that because the second transistor T2 is turnedon, the potential of the second node N2 is kept at Vdata; and at thesame time, according to the characteristics of the first transistor T1,when the potential of the first node N1 increases to Vdata+Vth, thefirst transistor T1 is turned off, and the charging process ends. Vdatarepresents the voltage value of the data signal, and Vth represents thethreshold voltage of the first transistor T1.

After the data writing and compensation stage P2, both the potential ofthe first node N1 and the potential of the third node N3 are Vdata+Vth,that is, voltage information with the data signal and the thresholdvoltage Vth is stored in the storage capacitor C for providing grayscale display data and compensating the threshold voltage of the firsttransistor T1 in the light emitting stage.

In the light emitting stage P3, the light emission control line providesthe light emission control signal EM, and the fourth transistor T4 andthe fifth transistor T5 are turned on by the low level of the lightemission control signal EM. The second transistor T2, the thirdtransistor T3, the seventh transistor T7, and the sixth transistor T6are turned off by respective high level signals. Meanwhile, thepotential of the first node N1 is Vdata+Vth, and the potential of thesecond node N2 is VDD, therefore the first transistor T1 is also kept onin this stage. The anode and the cathode of the light emitting elementL1 are respectively provided with the first voltage VDD and the secondvoltage VSS, so that the light emitting element L1 emits light under theaction of the driving current flowing through the first transistor T1.

At least one embodiment of the present disclosure further provides adisplay panel, and the display panel includes any one of the arraysubstrates provided by the embodiments of the present disclosure.

For example, FIG. 7 is a schematic diagram of the display panel providedby the embodiments of the present disclosure. As illustrated in FIG. 7 ,a display panel 500 provided by the embodiments of the presentdisclosure includes any one of the above array substrates.

For example, the display panel 500 further includes a fingerprintrecognition device (not illustrated) and a fingerprint recognitionregion 501. The fingerprint recognition device is disposed on the arraysubstrate and in the fingerprint recognition region 501. For example, atleast a part of the opening is in the fingerprint recognition region501, that is, at least a part of the orthographic projection of theopening on the array substrate or the base substrate is in thefingerprint recognition region 501, so as to improve the lighttransmittance of the fingerprint recognition region 501, therebyimproving the effect of fingerprint recognition, such as improving theaccuracy and speed of fingerprint recognition. For example, all theopenings are in the fingerprint recognition region 501, or a part of theopenings (some of the openings) are in the fingerprint recognitionregion 501. For example, some of the openings are in a non-fingerprintrecognition region.

For example, the display panel 500 further includes the non-fingerprintrecognition region 502 except the fingerprint recognition region 501.For example, the opening is not in the non-fingerprint recognitionregion 502, that is, any part of the orthographic projection of theopening on the array substrate is not in the non-fingerprint recognitionregion 502. In this way, the openings are only provided in thefingerprint recognition region 501, so that the total number of theopenings is reduced and the manufacturing process of the display panelis simplified while the light transmittance of the fingerprintrecognition region is improved to meet the light transmittancerequirement of fingerprint recognition.

Of course, in other embodiments, the opening is provided in thenon-fingerprint recognition region 502 of the display panel 500, thatis, the opening is provided in at least a part of the pixel units of thefingerprint recognition region 501 and the non-fingerprint recognitionregion 502 of the display panel 500.

Other components of the display panel may be designed and implemented bythose skilled in the art according to conventional techniques in theart.

At least one embodiment of the present disclosure further provides adisplay apparatus, and the display apparatus includes any one of thedisplay panels provided by the embodiments of the present disclosure.For example, the display apparatus may be any product or component witha display function such as a mobile phone, a tablet computer, atelevision, a display, a notebook computer, a digital photo frame, anavigator, etc.

At least one embodiment of the present disclosure further provides amanufacturing method of an array substrate, the array substratecomprises a plurality of pixel units arranged in an array, each of theplurality of pixel units comprises a plurality of sub-pixel units, andeach of the plurality of sub-pixel units comprises a light emittingregion and a non-light emitting region. The manufacturing methodcomprises: forming a light emitting element in each of the plurality ofsub-pixel units, in which the light emitting element comprises a lightemitting layer and a first electrode electrically connected to the lightemitting layer, and at least a part of the first electrode is in thelight emitting region; and forming a plurality of first wires, in whichthe plurality of first wires are configured to supply a power signal tothe light emitting element, and the plurality of first wires comprises afirst sub-wire; the first sub-wire extends along a first direction andcomprises a plurality of portions, the plurality of portions arearranged in the first direction and adjacent two portions of theplurality of portions are spaced apart from each other by an opening,and the opening is in the light emitting region; and the first electrodeof the light emitting element is stacked with the plurality of firstwires in a direction perpendicular to the array substrate, and at leasta part of an orthographic projection of the opening on the arraysubstrate does not overlap with an orthographic projection of the firstelectrode on the array substrate.

Illustratively, FIG. 8A-FIG. 8E are schematic diagrams of the arraysubstrate manufacturing method provided by the embodiments of thepresent disclosure. The manufacturing method of the array substrate isdescribed with a schematic diagram of forming one sub-pixel unit of thearray substrate. For example, a base substrate is provided first.

As illustrated in FIG. 8A, an active layer 9 is formed on the basesubstrate by a patterning process. The material of the active layer 9may refer to the description in the previous embodiments, and thespecific method of forming the active layer 9 may refer to conventionaltechniques in the art.

As illustrated in FIG. 8B, the manufacturing method of the arraysubstrate further includes forming a transistor and a storage capacitor;the forming the transistor and the storage capacitor includes: forming agate metal layer; and performing one patterning process on the gatemetal layer to form a gate electrode 7 of the transistor and a firstelectrode plate 81 of the storage capacitor. In this manufacturingmethod, the gate electrode 7 and the first electrode plate 81 are formedby performing only one patterning process on the same layer, which isbeneficial to simplifying the manufacturing process of the arraysubstrate.

It should be noted that in the embodiments of the present disclosure, inthe case where the patterning process is a photolithography process, onepatterning process in the present disclosure refers to a process inwhich one exposure process is performed with one mask.

As illustrated in FIG. 8C, the manufacturing method of the arraysubstrate further includes: forming a plurality of auxiliary wires 4.The plurality of auxiliary wires 4 are stacked with the layer in whichthe gate electrode 7 is located, for example, on a side, away from thebase substrate, of the layer in which the gate electrode 7 is located.The plurality of auxiliary wires 4 extend along a second directionintersecting the first direction. For example, a first metal layer isformed, and then a patterning process is performed on the first metallayer to form the plurality of auxiliary wires 4 and a second electrodeplate 82 of the storage capacitor, and at least one of the plurality ofauxiliary wires 4 and second electrode plate 82 are integral with eachother. In this manufacturing method, the auxiliary wires 4 and thesecond electrode plate 82 are formed by performing only one patterningprocess on the same layer, which is beneficial to simplifying themanufacturing process of the array substrate.

As illustrated in FIG. 8D, the manufacturing method of the arraysubstrate further includes: forming an insulation layer (not illustratedin FIG. 8D, refer to the insulation layer 5 in FIG. 4 ), in which theinsulation layer is between the plurality of first wires and theplurality of auxiliary wires 4 and includes first via holes 50. Theplurality of auxiliary wires 4 are respectively electrically connectedto the plurality portions of the first sub-wire through the first viaholes 50. The manufacturing method of the array substrate furtherincludes: forming a plurality of via holes exposing the active layer 9for electrically connecting the source/drain electrodes to the activelayer 9 through the plurality of via holes. For example, themanufacturing method of the array substrate further includes forming asecond via 51 penetrating the insulation layer 5, the second electrodeplate 82 of the storage capacitor, and a dielectric layer 83. Forexample, a data connection line 30 is formed while the plurality ofauxiliary wires 4 are formed by performing the one patterning process onthe first metal layer. The data connection line 30 is electricallyconnected to the first electrode plate 81 of the storage capacitorthrough the second via hole 51; and one terminal, away from the firstelectrode plate 81, of the data connection line 30 is connected to thesource electrode or the drain electrode of the transistor of the pixelcircuit.

As illustrated in FIG. 8D, the manufacturing method of the arraysubstrate further comprises forming the plurality of first wires; theplurality of first wires comprise a first sub-wire 11 and a secondsub-wire (not illustrated in FIG. 8D, referring to the second sub-wire12 in the previous figure); the plurality of first wires are configuredto provide a power signal to the light emitting element. In the method,each first sub-wire 11 extends along the first direction and includes aplurality of portions, the plurality of portions are arranged in thefirst direction and two adjacent portions 1111, 1112 of the plurality ofportions are spaced apart by an opening 3 which is located in the lightemitting region. The second sub-wire extends continuously in the firstdirection, that is, the second sub-wire extends along the firstdirection and does not include the opening. The plurality of auxiliarywires 4 intersect and are electrically connected with the pluralityportions of the first sub-wires 11.

For example, as illustrated in FIG. 8E, the array substrate includes adata line 6. The data line 6 is configured to provide a data signal forcontrolling the light emitting state of the light emitting layer to thelight emitting element if the power signal is applied to the lightemitting element. For example, the manufacturing method of the arraysubstrate further includes: forming a second metal layer, and performingone patterning process on the second metal layer to form the data line 6and the plurality of first wires 1. That is, the data line 6 and thefirst wires 1 are formed by performing only one patterning process onthe same layer, thereby simplifying the manufacturing process of thearray substrate.

As illustrated in FIG. 8E, a light emitting layer (not illustrated) ofthe light emitting element and a first electrode 21 are formed. Thefirst electrode 21 is stacked with the first wires 1 in the directionperpendicular to the array substrate, and the opening 3 does not overlapwith the first electrode 21 in the direction perpendicular to the arraysubstrate, that is, an entire orthographic projection of the opening 3on the base substrate does not overlap with an orthographic projectionof the first electrode 21 on the base substrate. In other sub-pixels,for example, a part of the opening does not overlap with the firstelectrode 21 in the direction perpendicular to the array substrate(i.e., the direction perpendicular to the base substrate), that is, apart of the orthographic projection of the opening on the base substratedoes not overlap with the orthographic projection of the first electrode21 on the base substrate. The planar shape of the first electrode 21 isnot limited to the case illustrated in FIG. 8E. For example, the planarshape of the first electrode 21 is a regular pattern, such asrectangular pattern, circular pattern, etc., or an irregular pattern,and may be designed according to actual needs. The position and the sizeof the opening 3 may be designed according to the position and theplanar shape of the first electrode 21.

What have been described above are only specific implementations of thepresent disclosure, the protection scope of the present disclosure isnot limited thereto. The protection scope of the present disclosureshould be based on the protection scope of the claims.

What is claimed is:
 1. An array substrate, comprising: a plurality ofpixel units in an array, wherein each of the plurality of pixel unitscomprises a plurality of sub-pixel units, and each of the plurality ofsub-pixel units comprises a light emitting region and a non-lightemitting region; a light emitting element, wherein each of the pluralityof sub-pixel units comprises the light emitting element, the lightemitting element comprises a light emitting layer and a first electrodeelectrically connected to the light emitting layer, and at least a partof the first electrode is in the light emitting region; and a pluralityof first wires which are configured to supply a power signal to thelight emitting element and comprise a first sub-wire, wherein the firstsub-wire extends along a first direction and comprises a plurality ofportions, the plurality of portions are arranged in the first direction,adjacent two portions of the plurality of portions are disconnected andspaced apart from each other by so that the first sub-wire has anopening provided between the adjacent two portions of the plurality ofportions, and the opening is in the light emitting region, wherein thefirst electrode of the light emitting element is stacked with theplurality of first wires in a direction perpendicular to the arraysubstrate, and at least a part of an orthographic projection of theopening on the array substrate does not overlap with an orthographicprojection of the first electrode on the array substrate; areas of thefirst electrodes of the plurality of sub-pixel units in each of theplurality of pixel units are different, the plurality of sub-pixel unitsin each of the plurality of pixel units comprise a first sub-pixel unit,and an area of the first electrode of the first sub-pixel unit issmallest among the first electrodes of the plurality of sub-pixel unitsin each of the plurality of pixel units; the opening is not in the lightemitting region of the first sub-pixel unit, and the opening is in thelight emitting regions of other sub-pixel units except the firstsub-pixel unit.
 2. The array substrate according to claim 1, furthercomprising: a plurality of auxiliary wires, extending along a seconddirection intersecting the first direction, wherein the plurality offirst wires further comprise a second sub-wire continuously extendingalong the first direction; and the plurality of portions of the firstsub-wire are respectively electrically connected to the second sub-wirethrough the plurality of auxiliary wires.
 3. The array substrateaccording to claim 2, wherein the plurality of first wires comprise aplurality of the second sub-wires, and at least one of the plurality ofportions of the first sub-wire is electrically connected to one secondsub-wire, which is closest to the at least one of the plurality ofportions of the first sub-wire, of the plurality of second sub-wiresthrough at least one of the plurality of auxiliary wires.
 4. The arraysubstrate of claim 2, wherein at least one of the plurality of portionsof the first sub-wire is electrically connected to the second sub-wirethrough at least two auxiliary wires of the plurality of auxiliarywires.
 5. The array substrate of claim 2, wherein the plurality ofauxiliary wires have first intersections points respectively with theplurality of portions of the first sub-wire, and the plurality ofauxiliary wires are respectively electrically connected to the pluralityof portions of the first sub-wire at the first intersections points; theplurality of auxiliary wires respectively have second intersectionpoints with the second sub-wire, and the plurality of auxiliary wiresare respectively electrically connected to the second sub-wire at thesecond intersection points.
 6. The array substrate according to claim 5,further comprising: an insulation layer which is between the pluralityof first wires and the plurality of auxiliary wires and comprises aplurality of first via holes, wherein a part of the plurality of firstvia holes are at the first intersection points, and the plurality ofauxiliary wires are respectively electrically connected to the pluralityof portions of the first sub-wire through the part of the plurality offirst via holes; and another part of the plurality of first via holesare at the second intersection points, and the plurality of auxiliarywires are respectively electrically connected to the second sub-wirethrough the another part of the first via holes.
 7. The array substrateaccording to claim 1, wherein the first electrode of the light emittingelement is an anode, and the plurality of first wires and the firstelectrode of the light emitting element all are opaque.
 8. The arraysubstrate according to claim 1, wherein a material of the plurality offirst wires and a material of the first electrode of the light emittingelement both are a metal material.
 9. The array substrate according toclaim 1, further comprising: a data line configured to provide a datasignal for controlling a light emitting state of the light emittinglayer to the light emitting element if the power signal is applied tothe light emitting element, wherein the data line is in a same layer asthe first wires and comprises a same material as the first wires. 10.The array substrate according to claim 2, further comprising a pixelcircuit, wherein the pixel circuit comprises: a transistor comprising anactive layer, a gate electrode, a source electrode and a drainelectrode; and a storage capacitor comprising a first electrode plateand a second electrode plate which are opposite to each other, whereinthe gate electrode of the transistor is in a same layer as the firstelectrode plate of the storage capacitor and comprises a same materialas the first electrode plate of the storage capacitor, and the pluralityof auxiliary wires are in a same layer as the second electrode plate ofthe storage capacitor and comprise a same material as the secondelectrode plate of the storage capacitor.
 11. A display panel comprisingthe array substrate according to claim
 1. 12. The display panelaccording to claim 11, further comprising a fingerprint recognitiondevice and a fingerprint recognition region, wherein the fingerprintrecognition device is provided on the array substrate and in thefingerprint recognition region; and at least a part of the orthographicprojection of the opening on the array substrate is in the fingerprintrecognition region.
 13. The display panel according to claim 12, furthercomprising a non-fingerprint recognition region except the fingerprintrecognition region, wherein no part of the orthographic projection ofthe opening on the array substrate is in the non-fingerprint recognitionregion.
 14. An array substrate, comprising: a plurality of pixel unitsin an array, wherein each of the plurality of pixel units comprises aplurality of sub-pixel units, and each of the plurality of sub-pixelunits comprises a light emitting region and a non-light emitting region;a light emitting element, wherein each of the plurality of sub-pixelunits comprises the light emitting element, the light emitting elementcomprises a light emitting layer and a first electrode electricallyconnected to the light emitting layer, and at least a part of the firstelectrode is in the light emitting region; and a plurality of firstwires which are configured to supply a power signal to the lightemitting element and comprise a first sub-wire, wherein the firstsub-wire extends along a first direction and comprises a plurality ofportions, the plurality of portions are arranged in the first direction,adjacent two portions of the plurality of portions are disconnected andspaced apart from each other so that the first sub-wire has an openingprovided between the adjacent two portions of the plurality of portions,and the opening is in the light emitting region, wherein the firstelectrode of the light emitting element is stacked with the plurality offirst wires in a direction perpendicular to the array substrate, and atleast a part of an orthographic projection of the opening on the arraysubstrate does not overlap with an orthographic projection of the firstelectrode on the array substrate; each of the plurality of pixel unitscomprises a red sub-pixel unit emitting red light, a green sub-pixelunit emitting green light, and a blue sub-pixel unit emitting bluelight; the opening is in the light emitting region of the blue sub-pixelunit and is in the light emitting region of the red sub-pixel units, andthe opening is not in the light emitting region of the green sub-pixelunit.
 15. A manufacturing method of an array substrate, wherein thearray substrate comprises a plurality of pixel units in an array, eachof the plurality of pixel units comprises a plurality of sub-pixelunits, and each of the plurality of sub-pixel units comprises a lightemitting region and a non-light emitting region; the manufacturingmethod comprises: forming a light emitting element in each of theplurality of sub-pixel units, wherein the light emitting elementcomprises a light emitting layer and a first electrode electricallyconnected to the light emitting layer, and at least a part of the firstelectrode is in the light emitting region; and forming a plurality offirst wires, wherein the plurality of first wires are configured tosupply a power signal to the light emitting element, the plurality offirst wires comprise a first sub-wire; the first sub-wire extends alonga first direction and comprises a plurality of portions, the pluralityof portions are arranged in the first direction, adjacent two portionsof the plurality of portions are disconnected and spaced apart from eachother so that the first sub-wire has an opening provided between theadjacent two portions of the plurality of portions, and the opening isin the light emitting region; the first electrode of the light emittingelement is stacked with the plurality of first wires in a directionperpendicular to the array substrate, and at least a part of anorthographic projection of the opening on the array substrate does notoverlap with an orthographic projection of the first electrode on thearray substrate; areas of the first electrodes of the plurality ofsub-pixel units in each of the plurality of pixel units are different,the plurality of sub-pixel units in each of the plurality of pixel unitscomprise a first sub-pixel unit, and an area of the first electrode ofthe first sub-pixel unit is smallest among the first electrodes of theplurality of sub-pixel units in each of the plurality of pixel units;the opening is not in the light emitting region of the first sub-pixelunit, and the opening is in the light emitting regions of othersub-pixel units except the first sub-pixel unit.
 16. The manufacturingmethod of the array substrate according to claim 15, further comprising:forming a plurality of auxiliary wires, wherein the plurality ofauxiliary wires extend along a second direction intersecting the firstdirection; the forming the plurality of first wires further comprise:forming a second sub-wire, wherein the second sub-wire continuouslyextends along the first direction; and wherein the plurality of portionsof the first sub-wire are respectively electrically connected to thesecond sub-wire through the plurality of auxiliary wires.
 17. Themanufacturing method of the array substrate according to claim 15,further comprising: forming a transistor and a storage capacitor,wherein the forming the transistor and the storage capacitor comprises:forming a gate metal layer; and performing one patterning process on thegate metal layer to form a gate electrode of the transistor and a firstelectrode plate of the storage capacitor.
 18. The manufacturing methodof the array substrate according to claim 16, further comprising:forming a first metal layer; and performing one patterning process onthe first metal layer to form the plurality of auxiliary wires and asecond electrode plate of the storage capacitor, wherein the secondelectrode plate of the storage capacitor and at least one auxiliary wireof the auxiliary wires are integral with each other.
 19. Themanufacturing method of the array substrate according to claim 15,wherein the array substrate comprises a data line, the data line isconfigured to provide a data signal for controlling a light emittingstate of the light emitting layer to the light emitting element if thepower signal is applied to the light emitting element, and themanufacturing method comprises: forming a second metal layer; andperforming one patterning process on the second metal layer to form thedata line and the plurality of first wires.